Magnetic structure and magnetocalorics of GdPO4

The magnetic ordering structure of GdPO4 is determined at T=60 mK by the diffraction of hot neutrons with wavelength ?=0.4696 Å. It corresponds to a noncollinear antiferromagnetic arrangement of the Gd moments with propagation vector k=(1/2,0,1/2). This arrangement is found to minimize the dipole-dipole interaction and the crystal-field...

Size-dependent magnetic ordering and spin dynamics in DyPO4 and GdPO4 nanoparticles

Low-temperature magnetic susceptibility and heat-capacity measurements on nanoparticles (d? 2.6 nm) of the antiferromagnetic compounds DyPO4 (TN=3.4 K) and GdPO4 (TN=0.77 K) provide clear demonstrations of finite-size effects, which limit the divergence of the magnetic correlation lengths, thereby suppressing the bulk long-range magnetic...

Non-destructive bulk analysis of the Buggenum sword by neutron resonance capture analysis and neutron diffraction

Two neutron based techniques, neutron resonance capture analysis (NRCA) and time-of-flight neutron-diffraction (TOF-ND) have been used to determine the elemental composition and structure of a precious and very well preserved all-metal sword from the Bronze Age. This Buggenum sword was on loan from the National Museum of Antiquities (NMA) in...

Neutron diffractometer INES for quantitative phase analysis of archaeological objects

Measuring & modeling in vivo kinetics of primary metabolism

Polarized neutron diffraction and Mössbauer spectral study of short-range magnetic correlations in the ferrimagnetic layered compounds (PPh4) [FeIIFeIII(ox)3] and (NBu4) [FeIIFeIII(ox)3]

Order-to-disorder transition in the XY-like quantum magnet Cs2CoCl4 induced by noncommuting applied fields

Short-range order in the topological spin glass (D3O)Fe3(SO4)2(OD)6 using xyz polarized neutron diffraction

Chiral critical exponents of the triangular-lattice antiferromagnet CsMnBr3 as determined by polarized neutron scattering

Hogbomite in sappherine-bearing rocks from the Bamble Sector, south Norway

Hogbomite is reported from two upper-amphibolite and granulite-facies, sapphirine-bearing, Al-Mg-Fe-rich and silica-poor lens-shaped layers within the Bamble Sector, south Norway. Primary assemblages, indicating peak metamorphic conditions of 773-844 °C at 7 kbar (Mg-Fe exchange thermometry), are spinel-sapphirine-biotite-gedrite, spinel-corudum...

Sapphirine-cordierite-bearing metasediments at Gladstad, South of Tvedestrand

Aluminous reaction textures in orthoamphibol-bearing rocks; the pressure-temperature evolution of the high-grade Proterozoic of the Bamble sector, south Norway